HOME BUYERS & SELLERS
Radon for Home Buyers and Sellers in Columbia, MO
Radon is a common consideration during real-estate transactions in Mid-Missouri. Here is what to expect and how to handle it.
THE PROCESS
How radon fits into a home sale
Radon testing is a standard part of the inspection process. Here is the typical flow.
1. Test during the inspection period
Radon testing is commonly part of the home inspection contingency. A professional test using a continuous monitor is recommended for legal transactions.
2. Review the result
If the result is at or above 4.0 pCi/L, the EPA and Missouri DHSS recommend mitigation. Results below 4.0 may still warrant consideration.
3. Negotiate the solution
Buyer and seller can agree on who pays for mitigation—often handled as a repair credit or a condition of the sale.
FOR BUYERS
What buyers should know
Should I test before buying?
Yes. Radon testing is commonly part of the inspection contingency. Missouri recommends professional testing with a continuous monitor for legal transactions, rather than a DIY kit.
What if the result is high?
If the result is at or above 4.0 pCi/L, mitigation is recommended. You can request that the seller install a system, provide a credit, or you can handle it after closing. Radon mitigation is a standard negotiation point.
Can I ask the seller to test?
You can request a recent test result, but it is best to have an independent test conducted during your inspection period. This ensures the test follows proper protocols and reflects current conditions.
FOR SELLERS
What sellers should know
Should I test before listing?
A pre-listing test can help you understand your home's radon level and address it proactively. If the result is elevated, you can install mitigation before listing or be prepared to negotiate.
Who pays for mitigation?
There is no legal requirement that the seller pays. It is a negotiation point. Many sellers provide a credit or install the system to keep the sale moving. A mitigated home can also be a selling point.
Does a mitigation system hurt resale value?
No. A properly installed mitigation system is generally seen as a positive—it shows the home has been tested and addressed. Many buyers appreciate the peace of mind.
NEGOTIATION
Who pays for mitigation?
There is no standard rule—radon mitigation is a negotiation point between buyer and seller. Here are common approaches.
- Seller installs the system before closing
- Seller provides a credit at closing for the buyer to install it
- Buyer handles mitigation after closing
- Cost is split between buyer and seller
Missouri recommends that legal-transaction testing be performed by a professional. DIY test results may not be accepted during negotiations.
MOVING FORWARD
Request a radon quote for your transaction
Whether you are buying, selling, or helping a client, a local radon professional can provide a quote for your situation.